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Surface Tension

At critical p...

Question

At critical point, the meniscus between liquid and vapour disappears due to

A

zero refractive index

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B

zero surface tension

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C

zero viscosity

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D

zero critical temperature

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Solution

The correct option is B zero surface tension
At critical point, the meniscus between liquid and vapor disappears due to zero surface tension. Also, there is zero difference between the densities of the two phases.

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